It's okay to go back 15 years if you must, but that, says Salvador, is the limit.
萨尔瓦多表示，如果必要的话，可以回溯到15年前，但那已然是极限了。
But if you must use the shell and you can't limit the data that comes in, you need to escape every potential meta-character before sending it in a command to the shell.
但是如果您必须使用shell并且不能限制到达的数据，那么就需要在将命令中的字符发送到shell中之前对可能存在的每个元字符进行转义。
Ideally, most of your web projects will take on some level of human nature during creation and implementation, but oftentimes, we must limit how casual and personal we can be.
理想化的想法是，在创作和实施过程中，网页项目的大部分内容都能带上某种程度的人性的本质。但我们常常控制自己本该有的随意和个性。
True again; but there must be a limit to the application of that argument—and some of these new partners lie on the wrong side of it.
这又是一个事实，但是这个辩解能使用的范围是有限的——并且其中的一些新伙伴理解错了。
Although it is a very good car, but not more is better, its "quantity" growth must have a limit, otherwise, it will follow any thing to their tails.
汽车虽然是一个极好的东西，但并非越多越好，其“量”的增长肯定要有一个限度，否则，就会跟世上任何事物一样走向自己的反面。
To do this, you must give yourself time to brainstorm – but also give yourself a time limit.
为了成功，你必须给自己来个头脑风暴，但也要给自己限定时间。
Knowledge and learning are important if we want to be successful, but we must also realise that what we know and what we have learnt may also limit our thinking.
我们要成功，知识和学问很重要，但我们必须认识到，我们所知道的以及已经学会的会限制我们的思维。
But it greatly limit their application ranges that carbon nanotubes must deposit on heat-resistant rigid substrate.
但是碳纳米管生长时必须在耐高温等刚性基底上沉积，严重限制了阵列式碳纳米管的应用范围。
Modified gear can break through the limit of spur gear in using. But modified gear must be manufactured with special design tools in some conditions.
变位齿轮可以有效突破标准渐开线齿轮存在的使用局限性，但在某些情况下必须采用专门设计的刀具加工。
There was no limit for you for must wear the hair and pants. But the most important is the shirt must be the same.
头发和裤子并没限制一定。但是衣服一定要是与原定的一样。
In realism, morality and law support each other, but this support must hold proper limit.
在现实中，道德与法律是相互支持的，这二者的支持还必须保持适当的限度。
Beijing's continued support for its rebellious step-child may be of mutual benefit to the leaders of both states, but there surely must be a limit to how much aggression can be tolerated.
基于两国领导层的共同利益，北京可能会继续支持其叛逆的“继子”，但肯定要为侵犯行为设定可接受的必要限制。
To do this, you must give yourself time to brainstorm – but also give yourself a time limit.
很多人都会时不时地在一些问题上过度思考，但有一些人会把它当做一个习惯。
Features: the upper limit of the fluid pressure range is higher, can be arbitrarily installed (to be customized) but must meet the conditions of fluid pressure difference.
特点：流体压力范围上限较高，可任意安装(需定制)但必须满足流体压差条件。
But the printing amount must be kept under strict control and limit the time for the alternate use of old and new paper within one quarter.
但要严格控制印量，把新旧纸交替使用时间控制在一个季度之内。
There is no limit of quantity. You may post processing your photos but all your art works must keep the original information and nature of a photo.
可以经过适当处理来调整显示效果，但是必须保持摄影类作品的基本性质，须保留图片原始信息；
However, because of the limit of resources and knowledge, there must be some insufficiency but will be improved by further study.
但由于笔者掌握的资料及知识视野的限制，文章中难免存在一些不足，还有待以后深入学习和研究。
However, because of the limit of resources and knowledge, there must be some insufficiency but will be improved by further study.
但由于笔者掌握的资料及知识视野的限制，文章中难免存在一些不足，还有待以后深入学习和研究。
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